Hach DR2400 Manual page 279

Method Performance
Summary of Method
Required Reagents
Description
Cyanuric Acid 2 Reagent Powder Pillow.............................................. 1 pillow........... 50/pkg.................2460-66
Required Apparatus
Sample Cells, 10-20-25 mL, w/cap......................................................... 2 ....................... 6/pkg.................24019-06
Required Standards
Cyanuric Acid ..................................................................................................................... 25 g.......................7129-24
Water, deionized ................................................................................................................. 4 L ..........................272-56
CyanuricAcid_PP_Other_TUR_Eng_Ody.fm
Precision
Standard: 10 mg/L cyanuric acid
Program
170
See Section 3.4.3 Precision on page 44 for more information, or if the standard
concentration did not fall within the specified range.
Sensitivity
Portion of Curve
10 mg/L
30 mg/L
50 mg/L
See Section 3.4.5 Sensitivity on page 44 for more information.
The test for Cyanuric Acid uses the turbidimetric method. Cyanuric Acid 2
Reagent precipitates any Cyanuric Acid present and holds it in suspension. The
amount of turbidity caused by the suspended particles is directly proportional to
the amount of cyanuric acid present. Test results are measured at 480 nm.
95% Confidence Limits of Distribution
7–13 mg/L cyanuric acid
∆Abs
0.010 0.3 mg/L cyanuric acid
0.010 0.3 mg/L cyanuric acid
0.010 0.4 mg/L cyanuric acid
Quantity Required
Per Test
Cyanuric Acid
∆Concentration
Unit Cat. No.
Cyanuric Acid
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